<template >
<div>

 <div class="search">
    <input v-model="keyword" type="text" class="search-input" placeholder="输入城市名或拼音"/>
 </div>

<div class="search-content" ref="search" v-show="keyword">
    <ul>
        <li  class="search-item border-bottom"  v-for="item of list" :key="item.id"
        @click="handleCityClick(item.name)"> {{item.name }}</li>

          <li  class="search-item border-bottom" v-show="hasNoData" > 没有找到匹配数据 </li>
    </ul>
</div>

 

</div>

</template>
<script>
import Bscroll from 'better-scroll'
import { mapMutations} from 'vuex'
export default {
    name:'CitySearch',
    props: {
        cities : Object
    },
    data(){
        return {
            keyword: '',
            list: [] ,
            timer:null,
        }
    },
    computed:{
        hasNoData(){
            return !this.list.length 
        }
    },
    watch: {
        keyword(){
             if(this.timer){
                 clearTimeout(this.timer)
             }
             if(!this.keyword){
                 this.list= [] 
                 return  
             }
             this.timer= setTimeout(() => {
                 const result= [] 
                 for (let i in this.cities){
                     this.cities[i].forEach((value)=> {
                        if(value.spell.indexOf(this.keyword)>-1 ||
                        value.name.indexOf(this.keyword)>-1 ){
                            result.push(value)
                        }
                     })
                 }
                 this.list  = result
             }, 100);
        }
    },
    methods:{
       handleCityClick( city ){
                //this.$store.commit ('changeCity',city)
                this.changeCity(city)
                 this.$router.push('/')
        },
        ...mapMutations(['changeCity'])
    },
    mounted(){
        this.scroll= new Bscroll(this.$refs.search)
    },


}
</script>
<style lang="stylus" scoped >
@import '~@/assets/style/varibles.styl'
.search
    height : .72rem
    padding: 0 .1rem 
    background: $bgColor
    .search-input
        box-sizing :border-box
        padding: 0 .1rem
        width:100%
        height: .62rem
        line-height : .62rem 
        text-align : center 
        border-radius : .06rem 
        color:#666
.search-content
    z-index:1
    overflow:hidden 
    position:absolute
    top: 1.58rem
    left: 0
    right :0 
    bottom :0
    background : white 
    .search-item
        line-height: .62rem
        padding-left : .2rem
        color : #666
        background : #fff 
        
</style>
